Amanda Knox goes home

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A "welcome home" sign is posted at a record store for the expected arrival later in the day to the West Seattle neighborhood of Amanda Knox, Tuesday, in Seattle. It's been four years since the University of Washington student left for the study abroad program in Perugia and landed in prison. The group Friends of Amanda Knox and others have been awaiting her return since an Italian appeals court on Monday overturned her conviction of sexually assaulting and killing her British roommate. Elaine Thompson/AP

Amanda Knox (l.) is comforted by her sister, Deanna Knox, during a news conference shortly after her arrival at Seattle-Tacoma International Airport Tuesday, in Seattle. Knox was freed Monday after an Italian appeals court threw out her murder conviction for the death of her British roommate, Meredith Kercher. Elaine Thompson/AP

Amanda Knox (r.) is comforted by her mother, Edda Mellas (c.) and offered water by her father, Curt Knox, looks on as they wait to talk to reporters, Tuesday, in Seattle. Knox was freed Monday after an Italian appeals court threw out her murder conviction for the death of her British roommate, Meredith Kercher. Ted S. Warren/AP

Amanda Knox's mother Edda Mellas (l.) checks in at Rome's Leonardo da Vinci airport, Tuesday. Amanda Knox was leaving Italy a free woman Tuesday, the morning after an Italian appeals court dramatically overturned the American student's conviction of sexually assaulting and brutally slaying her British roommate. The Italy-US Foundation, which has championed Knox's cause, said the American was at Leonardo da Vinci airport in Rome boarding a flight to London, where she caught a connecting flight to the United States. Andrew Medichini/AP

Amanda Knox weeps following the verdict that overturned her conviction and acquitted her of murdering her British roommate Meredith Kercher in 2007, at the Perugia court in Italy on Oct. 3. Ms. Knox is free after nearly four years in prison. She collapsed in tears after the verdict was read, confusing some who thought it was a guilty verdict. But they were tears of joy and relief, not sorrow. Lapresse/AP

Amanda Knox's father Curt hugs his ex-wife (Amanda's mother) Edda Mellas after Ms. Knox's verdict was read. In 2009, Ms. Knox was convicted of sexually assaulting and murdering Meredith Kercher with two accomplices and was sentenced to 26 years in prison. She denied wrongdoing and appealed the verdict. Pier Paolo Cito/AP

A portrait of Amanda Knox (l.) sits next to a photo of her slain former roommate, Meredith Kercher, as supporters of Ms. Knox react after watching a broadcast of her verdict in a hotel suite in Seattle (where Ms. Knox is from) on Oct. 3. Elaine Thompson/AP

Raffaele Sollecito, the former boyfriend and codefendant of Amanda Knox, reacts following his not guilty verdict. Ms. Knox and Mr. Sollecito were convicted in 2009 of sexually assaulting and murdering Meredith Kercher. Both had been in prison since Nov. 6, 2007, four days after Ms. Kercher's body was found at the apartment. Pietro Crocchioni/AP

Amanda Knox continues sobbing as she leaves the court after her verdict was read in Perugia, Italy, on Oct. 3. Pietro Crocchioni/Reuters

Amanda Knox (l.) leaves the Perugia, Italy, court in a car following her not guilty verdict. Angelo Carconi/AP

Amanda Knox is all smiles at the Leonardo Da Vinci airport in Fiumicino, Italy, on Oct. 4. Ms. Knox, cleared of the murder of British student Meredith Kercher, thanked supporters who believed in her innocence as she prepared to return home to the United States after four years in jail. REUTERS/ANSA/TELENEWS

Amanda Knox stands at the boarding gate at the Leonardo Da Vinci airport in Fiumicino, Italy, on Oct. 4. REUTERS/ANSA/TELENEWS

Amanda Knox (r.) arrives from Rome with family members at Heathrow Airport in London on Oct. 4. AP

Francesco Sollecito, father of Raffaele Sollecito, meets reporters outside his home in Bisceglie, Italy, on Oct. 4. Donato Fasano/AP

Meredith Kercher's family (from l.), mother Arline, brother Lyle, and sister Stephanie, attend a news conference in Perugia on October 4. The family said their ordeal would continue as they searched for the truth after the acquittal of Amanda Knox and her former boyfriend Raffaele Sollecito for the brutal 2007 killing. Rudy Guede is the only one of three originally convicted who is still jailed for the crime. Giorgio Benvenuti/Reuters